Growth series for affine Coxeter group (or affine Weyl group) D_9.

Terms

a(0) =1a(1) =10a(2) =54a(3) =211a(4) =669a(5) =1827a(6) =4456a(7) =9942a(8) =20638a(9) =40357a(10) =75043a(11) =133663a(12) =229368a(13) =380976a(14) =614836a(15) =967138a(16) =1486741a(17) =2238597a(18) =3307855a(19) =4804735a(20) =6870266a(21) =9682988a(22) =13466724a(23) =18499534a(24) =25123969a(25) =33758748a(26) =44911987a(27) =59196114a(28) =77344609a(29) =100230715